Zofingen, Switzerland

Zofingen is the hub of the Siegfried Group. The production facility at our Zofingen headquarters supplies our customers around the globe with exemplary Swiss quality. The Siegfried company is a popular employer in the Zofingen region, where we meet our social responsibility by training apprentices.

Main activities

  • Development and commercial manufacture of active pharmaceutical ingredients (APIs) and corresponding intermediates
  • Fully compliant with cGMP and SHE (Safety, Health and Environmental) standards

Special features

  • Manufacture of high potency active ingredients in development and production
  • Micronization in development and production

Strategic importance

Contract manufacturing of new active ingredients

Facts and Figures

Number of FTE: 543
Production capacity: 350 m³
Competencies: APIs, intermediates, custom synthesis, finished oral dosage forms, and controlled substances


Head Office Siegfried AG
Untere Brühlstrasse 4
4800 Zofingen

Phone +41 62 746 1111


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Siegfried AG
Untere Bruehlstrasse 4
CH-4800 Zofingen

Phone: +41 62 746 1111
Fax: +41 62 746 1202

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